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stm32l4xx standby exit pullup/pulldown

Question asked by brown.geoffrey.001 on Oct 6, 2017
Latest reply on Oct 6, 2017 by brown.geoffrey.001

The stm32l4 family had the very nice feature of programmable pull-up/pull-down on the various GPIO pins to be applied when in shutdown or standby.  In standby mode, these configurations are not lost at wakeup (at least as I read the reference manual).  Is it the case that these pull-ups/pull-downs continue to be applied until the pins are reconfigured ?   Is there a "moment" when the pins float ?   The reference manual is far from clear on this point, but it makes a difference whether I need an external pull-down.

 

Geoffrey

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